Parameter Descriptions - Yamaha PLG150-DX Owner's Manual

Algorithm
Range: 1 ... 32
This determines the algorithm used for the voice. The algorithm determines how the
operators are configured for the voice. The FM synthesis system of the PLG150-DX has
32 of these configurations, called "algorithms." (Refer to the
This section displays the signal path, showing which operators are "carriers" and which
are "modulators." The carriers are in the bottom row of the algorithm and are the actual
sound producers for the voice. Modulators are stacked above the carriers and alter the
timbre or tonal quality of the carriers. A modulator stacked on top of another modulator
alters the timbre even further. Simply put, the carriers produce the sound, and the mod-
ulators change the character of the sound.
• Changing the algorithm may result in drastic changes to the voice, and could produce unex-
pectedly loud and noisy sounds.
Feedback
Range: 0 ... 7
This determines the level of feedback. Each algorithm provides a feedback operator, in
which the output signal of the operator is looped back to its input. As its name implies,
Feedback produces harsh noise-like harmonics in the voice. The degree of harshness or
amount of noise depends not only on this setting, but also on the level of the feedback
operator and its position in the algorithm.

Parameter Descriptions

34
Parameters /
Parameter Descriptions
Algorithm List.)